We arrived in San Diego a couple of days earlier than planned in order to get some repairs done for the issues I described recently. Boomer and his crew of two helpers showed up after receiving the necessary parts and went to work on fixing the leak on the new autopilot steering pump, installing a replacement for old, leaking steering pump, and replacing the coupling for the bow thruster. It was actually a bit scary to see Boomer disappear deep in the forward bilge to get at the thuster coupling. There is no way I would have been able to get in there, much less get out. After a long, hot day’s worth of work, we had a working bow thruster and two brand new autopilot steering pumps. The next day we did a sea trial around the harbor to make sure that all was well. Everything was good, so we were ready to go.
We also had an issue with the stabilizers, which I THOUGHT we had fixed on the way down to San Diego. Briefly, the stabilizers on our boat are a pair of fins mounted on the hull of our boat. They are moved through a complex electical and hydraulic control system to counteract the rolling motion induced by waves. The stabilizer circuit breaker mysteriously started tripping, shutting off the control circuitry, and therefore, the use of the stabilizers. We actually discovered this on our run from Marina Del Rey to Alamitos Bay and spent a couple of hours underway without the stabilizers working. Even though the conditions were mild, we realized that we’d really rather have them working. After consultation with fellow owners on the Nordhavn Owners Group and Ernie Romeo, it appeared that the circuit breaker was undersized for the new power supply that was installed this summer. So, I changed the breaker, and everything worked just fine on the remaining legs down to San Diego. Of course, there was the nagging question of why the breaker had not tripped before….
As Gwen mentioned, we prepared to depart San Diego for Ensenada this morning, only to find that the breaker started tripping AGAIN. We turned around after getting less than 100 yards from the dock and tried to figure out what was wrong. It was clear that the circuit was not overloaded – the 20 Amp breaker was tripping with a measured 8.5 Amps of load. Now thoroughly confused, I decided to call Boomer – actually expecting to leave him a message. I just happened to catch him on the way in to work, and he came right over to the boat. He started troubleshooting and I was helping him recreate the problem, when suddenly, the stabilizers were not working at all – there was no hydraulic pressure. Boomer discovered the culprit, which was a failed main relay for the hydraulic system. This relay allows the hydraulic system to become pressurized and move the stabilizer fins. In a stroke of good luck, Boomer happened to have a spare relay at the shop. Replacing that and a fuse that blew when the relay failed finally fixed the stabilizer problem once and for all (I hope).
So, one more night in San Diego and we hope to rejoin the CUBAR group down in Ensenada tomorrow (October 31).
MV Miss Miranda 